As a consumption product of power energy, air compressor has a wide range of applications and industries. As an important energy source of industrial products, air compressor can be called the "life gas source" of industrial products.

Air compressor is a kind of mechanical equipment that compresses gas volume, increases gas pressure and transports gas. It can reduce gas volume, increase pressure, and has certain kinetic energy. It can be used as mechanical power or other purposes.

Sullair screw air compressor LS110P-160 series

According to different compressed gases, compressors can be divided into air compressors, oxygen compressors, ammonia compressors, natural gas compressors, etc.

According to the type of installation works, it can also be divided into: piston compressor, rotary screw air compressor, centrifugal compressor (motor driven), etc.

According to the way of compressor gas, it can be divided into two categories: positive displacement compressor and power compressor. According to the structure and working principle, the displacement compressor can be divided into reciprocating (piston type, membrane type) compressor and rotary (sliding vane type, screw type, rotor type) compressor; Power compressor can be divided into axial compressor, centrifugal compressor and mixed flow compressor.

It can be divided into single-stage compressor, two-stage compressor and multi-stage compressor according to the number of times of compression.

It can be divided into vertical compressor, horizontal compressor, L-type compressor, V-type compressor, W-type compressor, sector compressor, M-type compressor and H-type compressor according to the arrangement of cylinders.

According to the arrangement method of cylinders, they can be divided into: series compressor, parallel compressor, compound compressor, symmetric balanced compressor - cylinders are horizontally arranged on both sides of the crankshaft with 180 ° crankshaft journals, arranged as H-type, D-type and M-type, and their inertia forces can be basically balanced (large compressors are developing in this direction).

According to the final exhaust pressure of the compressor, it can be divided into: low pressure compressor - the exhaust pressure is 0.3~1.0MPa; Medium pressure compressor - discharge pressure is 1.0~10.0MPa; High pressure compressor - discharge pressure is 10.0~100.0MPa; Ultra high pressure compressor - discharge pressure is above 100.0MPa.

According to the discharge capacity of the compressor, it can be divided into: micro compressor - the gas transmission capacity is less than 1m3/min; Small compressor - the gas transmission capacity is 1~10m3/min; Medium compressor - the gas transmission capacity is 10~100m3/min; Large compressor - the gas transmission capacity is more than 100m3/min;

According to the lubrication mode, it can be divided into oil-free compressor and oil-lubricated compressor.

According to the cooling mode, it can be divided into: water-cooled compressor and air-cooled compressor.

According to the type of transmission, it can be divided into: compressors powered by motors, compressors powered by steam, compressors powered by internal combustion engines, and compressors powered by steam turbines.

According to the transmission method of power machine and compressor, it can be divided into: rigid coupling directly driven compressor, flexible coupling directly driven compressor, reduction gear driven compressor, belt driven compressor, and free piston compressor without crankshaft connecting rod mechanism.

The performance parameters of compressor mainly include volume, flow, suction pressure, exhaust pressure, working efficiency, input power, output power, performance coefficient, noise, etc.

The following is the use of air compressors in various industries:

1. Blowing and inflation: tire inflation, blow molding, blow pipe, blow bottle, food filling, etc.

2. Control instruments: processing center, machine tool, printing machinery, auxiliary equipment control of power plant, train brake, track changing device of rail, opening and closing of vehicle doors and windows, control valve, instrument power, etc.

3. Driving equipment: air gun, nail gun, manipulator, air drill, air pick, etc.

4. Surface spraying: metal surface sandblasting, surface painting, etc.

5. Dust transportation: pulverized coal transportation in the power plant smelter, dust transportation in the cement plant, etc.

6. Pressurization: metal casting, forging, etc.

7. Chemical reaction: chemical reaction of chemical plant, oxygen production, nitrogen production, etc.

8. Purging: power plant pipeline cleaning, smelter, machining plant scrap iron, dust purging, workbench cleaning and other ventilation, tunnel, mine ventilation.

9. Aircraft manufacturing: spray washing machine, mold withdrawal, driving assembly tools, drilling rig, steam hammer, lifting hoist, combined cutter, reamer, riveter, screwdriver, forging hammer, metal forming press, sandblasting, painting.

10. Spray washing machine: spray washing machine, driving assembly tools, lifting hoist, pneumatic control, forging workshop, sheet metal workshop.

11. Beverage factory: bottle washing machine, canning machine, internal spraying of wine barrel, and gas for food industry.

12. Cement manufacturing: storage ventilation, mixing of cement slurry, cleaning and sealing of cement bags, mixing of raw materials, dumpers, cleaning equipment, clinker cooling, conveying cement and coal, cleaning of cement kilns, loading and unloading of vehicles and ships, lifting and hoisting devices, and pneumatic control.

13. Thermal power plant: blow air to clean pipes, blow away smoke scale, clear boiler and condenser pipes, jet clean, transport pulverized coal, remove bulky water, pneumatic control.

14. Hydropower plant: engine control, ship lock maintenance, drive controller, drive lubrication pump, drive ship lock, start control, garbage cleaning network.

15. Food industry (general application): liquid mixing, gas (oxygen) for fermentation tank, cleaning equipment with nozzle, clear container with nozzle, raw materials for transportation, food dehydration and filtration.

16. Forging workshop: oxygen skin blowing, furnace door air curtain, lifting hoist and elevator, drive bending and straightening machine, drive clutch brake and clamping device, drive forging hammer, drive fuel injector.

17. Casting workshop: hot metal car positioning, cleaning equipment, sand conveying, driving pneumatic tools, sand machine, grinder, lifting hoist and elevator, air pick, steel brush, sand blasting, sand screening, and mud core spraying.

To sum up, compressed air is used in various industries including machinery, automobile, electronics, power, metallurgy, mining, construction, building materials, petroleum, chemical, petrochemical, light textile, environmental protection, military and other fields of industrial and civil production and life.